@misc{indiciae6b0136282b1f,
  title = {The COPD Self-Efficacy Scale.},
  author = {J K Wigal and T L Creer and H Kotses},
  year = {1991},
  doi = {10.1378/chest.99.5.1193},
  url = {https://pubmed.ncbi.nlm.nih.gov/2019177/},
  note = {Source identifier: 2019177}
}